The Lab
Specimen No. 0147
ClearedDerivedthickenerantimicrobial

Polyquaternium-10

polyquaternium-10 · pq-10 · hydroxyethylcellulose dimethyl diallylammonium chloride copolymer

A cationic polymer used as a hair conditioner and antistatic agent. The CIR approves concentrations up to 2%. Non-irritating, non-sensitizing, non-genotoxic, and approved in all major regulatory markets. Does not penetrate skin — remains on the hair surface.

medium confidence
Researched April 18, 2026

Concerns

  • Slight eye and skin irritation possible above 2% — well within safety limits at typical use concentrations

Commonly found in

ShampooConditionerStyling productsHair treatments2-in-1 formulas

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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LabelCleared verdict badge: Polyquaternium-10 — Cleared
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